STMPE2401 Datasheet PDF

STMicroelectronics STMPE2401

The STMPE2401 is a GPIO (General Purpose Input / output) port expander able to interface a Main Digital ASIC via the two-line bidirectional bus (I2C); separate GPIO Expander IC is often used in Mobile-Multimedia platforms to solve the problems of the limited amounts of GPIOs usually available on the Digital Engine. The STMPE2401 offers great flexibility as each I/Os is configurable as input, output or specific functions; it's able to scan a keyboard, also provides PWM outputs for brightness control in backlight, rotator decoder interface and GPIO. This device has been designed very low quiescent current, and is including a wake up feature for each I/O, to optimize the power consumption of the IC.